A case control study of ~2,000 women found that each rs16991615(A) allele was associated with an average increase in age at menopause of 11 months. This also meant that each rs16991615(G) allele yielded an odds ratio of 1.85 (CI: 1.51–2.2, p = 1.45 x 10e-9) of early menopause, defined as occurring before the age of 46.[PMID 20952801]

Overall, women homozygous for the "early" alleles at all 4 SNPs found in this study were ~4 times more likely to undergo menopause early compared to women who had a total of 3 or less risk alleles. However, the ability to predict which women will actually undergo early menopause using these 4 SNPs is still low.[PMID 20952801]